IT1293441B1 - Procedimento e dispositivo per la misurazione dei parametri dell'eco su linee telefoniche. - Google Patents

Procedimento e dispositivo per la misurazione dei parametri dell'eco su linee telefoniche.

Info

Publication number
IT1293441B1
IT1293441B1 IT97TO000626A ITTO970626A IT1293441B1 IT 1293441 B1 IT1293441 B1 IT 1293441B1 IT 97TO000626 A IT97TO000626 A IT 97TO000626A IT TO970626 A ITTO970626 A IT TO970626A IT 1293441 B1 IT1293441 B1 IT 1293441B1
Authority
IT
Italy
Prior art keywords
procedure
measuring
telephone lines
echo parameters
echo
Prior art date
Application number
IT97TO000626A
Other languages
English (en)
Italian (it)
Inventor
Andrea Allasia
Guido Manzone
Original Assignee
Sip
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to IT97TO000626A priority Critical patent/IT1293441B1/it
Application filed by Sip filed Critical Sip
Priority to PCT/EP1998/004216 priority patent/WO1999003244A2/en
Priority to YU1000A priority patent/YU49150B/sh
Priority to KR1020007000285A priority patent/KR20010021726A/ko
Priority to CA002295226A priority patent/CA2295226C/en
Priority to EP98941303A priority patent/EP1012997B1/en
Priority to AU89740/98A priority patent/AU729006B2/en
Priority to ES98941303T priority patent/ES2175759T3/es
Priority to DE69804474T priority patent/DE69804474T2/de
Priority to AT98941303T priority patent/ATE215286T1/de
Priority to CN98807131A priority patent/CN1263652A/zh
Priority to JP2000502612A priority patent/JP3626094B2/ja
Priority to IL13351898A priority patent/IL133518A0/xx
Priority to HU0003047A priority patent/HUP0003047A2/hu
Priority to US09/445,950 priority patent/US6501830B1/en
Priority to BRPI9810673-2B1A priority patent/BR9810673B1/pt
Priority to HRT097A000626A priority patent/HRP980386A2/hr
Priority to ARP980103378A priority patent/AR013362A1/es
Publication of ITTO970626A1 publication Critical patent/ITTO970626A1/it
Application granted granted Critical
Publication of IT1293441B1 publication Critical patent/IT1293441B1/it
Priority to NO20000119A priority patent/NO320584B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/493—Testing echo effects or singing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/46—Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
IT97TO000626A 1997-07-11 1997-07-11 Procedimento e dispositivo per la misurazione dei parametri dell'eco su linee telefoniche. IT1293441B1 (it)

Priority Applications (19)

Application Number Priority Date Filing Date Title
IT97TO000626A IT1293441B1 (it) 1997-07-11 1997-07-11 Procedimento e dispositivo per la misurazione dei parametri dell'eco su linee telefoniche.
IL13351898A IL133518A0 (en) 1997-07-11 1998-07-07 Method of and device for measuring echo parameters on telephone lines
KR1020007000285A KR20010021726A (ko) 1997-07-11 1998-07-07 전화선 상의 에코 파라미터를 측정하기 위한 장치 및 방법
CA002295226A CA2295226C (en) 1997-07-11 1998-07-07 Method of and device for measuring echo parameters on telephone lines
EP98941303A EP1012997B1 (en) 1997-07-11 1998-07-07 Method of and device for measuring echo parameters on telephone lines
AU89740/98A AU729006B2 (en) 1997-07-11 1998-07-07 Method of and device for measuring echo parameters on telephone lines
ES98941303T ES2175759T3 (es) 1997-07-11 1998-07-07 Procedimiento y dispositivo para medir los parametros del eco en lineas telefonicas.
DE69804474T DE69804474T2 (de) 1997-07-11 1998-07-07 Verfahren und vorrichtung zur messung von echoparametern auf telefonleitungen
PCT/EP1998/004216 WO1999003244A2 (en) 1997-07-11 1998-07-07 Method of and device for measuring echo parameters on telephone lines
CN98807131A CN1263652A (zh) 1997-07-11 1998-07-07 用于测量电话线路上回波参数的方法和设备
JP2000502612A JP3626094B2 (ja) 1997-07-11 1998-07-07 電話線のエコーパラメータを測定する方法及び装置
YU1000A YU49150B (sh) 1997-07-11 1998-07-07 Postupak i uređaj za merenje parametara eha na telefonskim linijama
HU0003047A HUP0003047A2 (hu) 1997-07-11 1998-07-07 Eljárás és berendezés visszhangparaméterek mérésére telefonvonalakon
US09/445,950 US6501830B1 (en) 1997-07-11 1998-07-07 Method of and device for measuring echo parameters on telephone lines
BRPI9810673-2B1A BR9810673B1 (pt) 1997-07-11 1998-07-07 Dispositivo e método para medir os parâmetros de eco em linhas telefônicas
AT98941303T ATE215286T1 (de) 1997-07-11 1998-07-07 Verfahren und vorrichtung zur messung von echoparametern auf telefonleitungen
HRT097A000626A HRP980386A2 (en) 1997-07-11 1998-07-10 Method of and device for measuring echo parameters on telephone lines
ARP980103378A AR013362A1 (es) 1997-07-11 1998-07-10 Procedimiento y dispositivo para la medicion de los parametros del eco en lineas telefonicas
NO20000119A NO320584B1 (no) 1997-07-11 2000-01-10 Fremgangsmate og anordning for maling av ekkoparametere pa telefonlinjer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT97TO000626A IT1293441B1 (it) 1997-07-11 1997-07-11 Procedimento e dispositivo per la misurazione dei parametri dell'eco su linee telefoniche.

Publications (2)

Publication Number Publication Date
ITTO970626A1 ITTO970626A1 (it) 1999-01-11
IT1293441B1 true IT1293441B1 (it) 1999-03-01

Family

ID=11415862

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97TO000626A IT1293441B1 (it) 1997-07-11 1997-07-11 Procedimento e dispositivo per la misurazione dei parametri dell'eco su linee telefoniche.

Country Status (19)

Country Link
US (1) US6501830B1 (sh)
EP (1) EP1012997B1 (sh)
JP (1) JP3626094B2 (sh)
KR (1) KR20010021726A (sh)
CN (1) CN1263652A (sh)
AR (1) AR013362A1 (sh)
AT (1) ATE215286T1 (sh)
AU (1) AU729006B2 (sh)
BR (1) BR9810673B1 (sh)
CA (1) CA2295226C (sh)
DE (1) DE69804474T2 (sh)
ES (1) ES2175759T3 (sh)
HR (1) HRP980386A2 (sh)
HU (1) HUP0003047A2 (sh)
IL (1) IL133518A0 (sh)
IT (1) IT1293441B1 (sh)
NO (1) NO320584B1 (sh)
WO (1) WO1999003244A2 (sh)
YU (1) YU49150B (sh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7236573B2 (en) * 2002-04-01 2007-06-26 At&T Intellectual Property, Inc. Method and apparatus for testing telephone sound quality
EP1376997A1 (en) * 2002-06-24 2004-01-02 Alcatel Method for testing and adapting an audio unit parameters to a telecommunication system
CN100379210C (zh) * 2003-06-08 2008-04-02 华为技术有限公司 通信***回波特性的在线测试方法及测试***
CN101119136B (zh) * 2006-08-04 2012-07-11 华为技术有限公司 一种获取线路基本参数的方法及装置
CN109459731B (zh) * 2018-12-13 2020-11-17 广州极飞科技有限公司 信号处理方法和装置、毫米波雷达

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612782A (en) * 1970-03-02 1971-10-12 Bell Telephone Labor Inc Method and apparatus for detecting the location of a fault between two repeaters of a one-way repeatered transmission line
US3777256A (en) * 1972-02-14 1973-12-04 North Electronics Corp Delay distortion measurement system
US4039769A (en) * 1976-04-22 1977-08-02 Bradley Telcom Corporation Instrument and method for measuring envelope delay in a transmission channel
JPH01212127A (ja) * 1988-02-19 1989-08-25 Nec Corp エコー除去方法及びエコー除去装置
JPH0282820A (ja) * 1988-09-20 1990-03-23 Nec Corp 反響消去装置の自己診断回路
US5164989A (en) * 1990-12-11 1992-11-17 Octel Communications Corporation Echo cancellation methods and apparatus for voice processing systems
FR2713417B1 (fr) * 1993-12-02 1996-02-02 Europ Agence Spatiale Procédé de réglage adaptatif d'un suppresseur d'écho.
JP3198224B2 (ja) * 1995-01-10 2001-08-13 アンリツ株式会社 通話回線のエコー測定装置

Also Published As

Publication number Publication date
ES2175759T3 (es) 2002-11-16
CA2295226C (en) 2003-05-20
JP3626094B2 (ja) 2005-03-02
KR20010021726A (ko) 2001-03-15
NO20000119D0 (no) 2000-01-10
EP1012997B1 (en) 2002-03-27
IL133518A0 (en) 2001-04-30
AU729006B2 (en) 2001-01-25
NO320584B1 (no) 2005-12-27
CN1263652A (zh) 2000-08-16
ATE215286T1 (de) 2002-04-15
AU8974098A (en) 1999-02-08
CA2295226A1 (en) 1999-01-21
DE69804474T2 (de) 2002-10-31
BR9810673B1 (pt) 2013-12-03
DE69804474D1 (de) 2002-05-02
WO1999003244A3 (en) 1999-06-24
WO1999003244A2 (en) 1999-01-21
ITTO970626A1 (it) 1999-01-11
JP2001510304A (ja) 2001-07-31
YU1000A (sh) 2001-05-28
HUP0003047A2 (hu) 2001-01-29
BR9810673A (pt) 2000-12-05
EP1012997A2 (en) 2000-06-28
NO20000119L (no) 2000-01-10
YU49150B (sh) 2004-03-12
AR013362A1 (es) 2000-12-27
US6501830B1 (en) 2002-12-31
HRP980386A2 (en) 1999-06-30

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Legal Events

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0001 Granted